Lexivon LX-183 User manual
LX-183 USER MANUAL
10-150 Ft-Lb/13.6-203.5 Nm
1/2-INCH DRIVE CLICK
TORQUE WRENCH
A
B
C
D
E
F
ATTENTION
Please read and understand entire manual,
including all safety information, before using
torque wrench. This tool is a precision measuring
instrument. Handle with care and store properly.
Do not attempt to increase leverage of this wrench
with any other device. Failure to follow all
instructions could result in damage to torque
wrench, property damage, or injury.
Wrench is shipped ready to use, calibrated and
tested to an accuracy of +/- 4%. To maintain this
accuracy, it is important that wrench is stored at
lowest torque setting, 10 ft.-lb. (13.6 Nm). This
setting relieves extra tension on the internal
spring, reducing fatigue that can adversely affect
accuracy.
INTRODUCTION
A. Square Ratchet Head
B. Handle Body
C. Main Scale
D. Micrometer Scale
E. Knurled Handle
F. Lock Nut
!
!
This is a dual-range torque wrench marked with feet
pounds (ft.-lb.) and Newton meters (Nm) on opposite
sides of handle.
SETTING TORQUE READING
Foot Pounds (Example of setting 95 ft-lb)
1. Locate lock nut on the
end of handle. Unlock
knurled handle by turning
lock nut counterclockwise.
4. Lock torque setting by
turning lock nut clockwise
until snug. Wrench is now
set to measure 95 ft.-lb. of
torque and ready to use.
2. Turn knurled handle until
its top edge is even with the
horizontal “90” mark on
main scale and the “0” mark
on micrometer scale is
centered on vertical line of
main scale.
3. The micrometer scale
divides the main scale
markings into 10 divisions.
Every micrometer scale
marking equals 1 ft.-lb.
To increase torque from 90
to 95, turn micrometer
handle clockwise until "5"
mark is centered on vertical
line of main scale.
90 ft.-lb. (main scale) + 5
ft.-lb. (micrometer scale) =
95 ft.-lb.
Setting desired torque on the Nm scale uses the
same procedure described above for ft.-lb. scale.
The micrometer scale divides the main scale
markings into 10 divisions. Every micrometer scale
marking equals 1.36 Nm.
To set a torque value of 80.0 Nm, turn knurled
micrometer handle until top is aligned with “67.8”
mark on main scale and the “0” mark on microme-
ter scale is centered on vertical line of main scale.
To increase torque from 67.8 Nm to 80.0 Nm,
turn micrometer handle
clockwise until the “9”
mark is centered on
vertical line of main
scale. 80.0 Nm - 67.8
Nm = 12.2 Nm. 12.2 Nm
/ 1.36 = 9 micrometer
scale markings. Wrench
is now set to measure
80.0 Nm of torque and
ready to use.
NEWTON METERS
(Example of setting 80.0Nm)
WRENCH OPERATION
1. Install proper socket/attachment on the square
drive and apply to nut/bolt. Make sure to keep
your tightening hand centered on the knurled
handle for accurate results.
2. Operate the wrench to tighten nut/bolt and
slow operation when they became snug to a
smooth and steady pull. When a ‘CLICK’ or
‘IMPULSE’ is heard or felt, stop pulling wrench and
release pressure on handle.
3. Wrench will automatically reset for next
operation after pressure is released.
4. IMPORTANT OPERATION NOTICE:
Operating wrench too quickly or with too much force
may cause you to miss the exact torque setting.
Do not continue to pull after torque setting is
reached. Doing so will damage wrench internal
mechanism.
At low torque settings, click can be subtle. Use
wrench in a quiet environment.
Do not use torque wrench to loosening fasteners.
Torque is measured in CLOCKWISE direction only!
Tighten/adjust lock nut and knurled handle by
hand only.
Torque is measured
in CLOCKWISE
direction only
“CLICK”
STOP
MAINTENANCE AND STORAGE
1. If wrench has not been used for a long period of
time, operate it several times at a low torque
setting. This will allow internal lubricant to recoat
internal components.
2. Keep the Torque Wrench Scale
at the lowest setting when not in
use. The lowest setting: 10 ft.-lb.
mark on the main scale and ‘0’
mark on the micrometer scale. DO
NOT turn handle below lowest
torque setting.
3. This wrench is a precision measuring
instrument. Take care to operate wrench correctly.
Store in a clean, dry environment.
4. Clean wrench by wiping with a clean, dry, lint-free
cloth. Do not immerse in any type of liquid or cleaner.
This may damage the internal components of the
wrench.
CAUTION:
PRECISION TOOL - Do not use for extreme
operation like breaking loose stuck fasteners.
PRACTICE FIRST - Try wrench on a non-critical
fastener first to learn how it works.
OPERATE SLOWLY - Wrench “clicks” to notify
when torque value is reached. Wrench does not
stop applying force automatically.
LISTEN AND FEEL - At low torque settings
clicks is subtle. Learn to hear and feel the click.
STORE AT LOWEST SETTING - To maintain
calibration, set wrench to lowest torque value
before storage.
MEASURES IN ONE DIRECTION - Wrench only
measures torque in right hand (clockwise)
direction.
TORQUE UNIT CONVERSION TABLE
60
120
180
240
300
360
420
480
540
600
660
720
780
840
900
960
1020
1080
1140
1200
1260
1320
1380
1440
1500
1560
1620
1680
1740
1800
INCH
POUNDS
(in.-lb.)
6.78
13.55
20.33
27.11
33.89
40.67
47.45
54.23
61.01
67.79
74.56
81.34
88.12
94.90
101.68
108.46
115.24
122.02
128.80
135.58
142.36
149.13
155.91
162.69
169.47
176.25
183.03
189.81
196.59
203.37
NEWTON
METERS
(Nm)
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
FOOT
POUNDS FOOT
POUNDS
8.34
12.50
16.67
20.83
25.00
29.17
33.33
37.50
41.67
45.83
50.00
54.16
58.33
62.50
66.67
70.83
75.00
79.16
83.33
87.50
91.67
95.83
100.00
104.16
108.33
112.50
116.67
120.83
125.00
129.16
133.33
137.50
141.67
145.83
150.00
NEWTON
METERS
(Nm)
11.29
16.94
22.59
28.24
33.89
39.54
45.19
50.84
56.49
62.14
67.79
73.44
79.09
84.73
90.38
96.03
101.68
107.33
112.98
118.63
124.28
129.93
135.58
141.23
146.88
152.53
158.17
163.82
169.47
175.12
180.77
186.42
192.07
197.72
203.37
INCH
POUNDS
(in.-lb.)
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
1050
1100
1150
1200
1250
1300
1350
1400
1450
1500
1550
1600
1650
1700
1750
1800
88.51
177.01
265.52
354.03
442.53
531.04
619.55
708.06
796.56
885.07
973.58
1062.09
1150.59
1236.10
1327.61
1416.12
1504.62
1593.13
1681.64
1770.15
1858.65
INCH
POUNDS
(in.-lb.)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
NEWTON
METERS
(Nm)
7.37
14.75
22.12
29.50
36.87
44.25
51.63
59.00
66.38
73.75
81.13
88.50
95.88
103.25
110.63
118.01
125.38
132.76
140.13
147.51
154.88
FOOT
POUNDS
CONVERSIONS
0.138 m-kg
12.0 in.-lb.
1.35 Nm
13.8 cm-kg
1 Nm =
8.85 in.-lb.
0.102 m-kg
10.2 cm-kg
1 in.-lb. =
0.113 Nm
0.0115 m-kg
1.15 cm-kg
FOR ANY HELP YOU MIGHT NEED
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